<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    #zxy{color: green}
    .c1{color: blue}
    h1,h2{background-color: yellow}
    input[type='submit']{background-color: red}
    input[type='button']{color: pink}
    *{border: 1px solid green}
  </style>
</head>
<body>
  <ul>
    <li id="zxy">张学友</li><li class="c1">刘德华</li><li>郭富城</li>
  </ul>
<h1 class="c1">悟空</h1>
<h1>八戒</h1>
<h1>唐僧</h1>
<h2>刘备</h2>
  <input type="submit">
  <input type="button" value="按钮">
</body>
</html>